adding a dependency check for jsonnet and jb

otterdog_database/scripts/GLOBAL.sh

+#!/bin/bash
+
+check_dependencies() {
+  local missing_dependencies=()
+
+  # Check for jsonnet
+  if ! command -v jsonnet &> /dev/null; then
+    missing_dependencies+=("jsonnet")
+  fi
+
+  # Check for jb
+  if ! command -v jb &> /dev/null; then
+    missing_dependencies+=("jb")
+  fi
+
+  if [ ${#missing_dependencies[@]} -eq 0 ]; then
+    echo "All required dependencies are installed."
+  else
+    echo "ERROR!!! The following dependencies are missing:"
+    for dep in "${missing_dependencies[@]}"; do
+      echo "  $dep"
+    done
+  fi
+}
+
+